Low Emissivity Coatings for Use at High Temperatures

The high velocities of aerospace vehicles causes them to attain high skin temperatures both within the earths atmosphere and upon reentry into the atmosphere. Furthermore, outside the earths atmosphere, the operating temperatures of propulsion systems generate heat. The results of this heat generated by flight is to place strenuous temperature requirements upon materials which are used for instruments housed within a space vehicle. A problem then exists of how to prevent heat transfer from hot components of an aerospace vehicle to instrument systems within the vehicle.